CN203791176U - Variable-torque starting type energy-saving vibration exciter - Google Patents
Variable-torque starting type energy-saving vibration exciter Download PDFInfo
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- CN203791176U CN203791176U CN201420199736.1U CN201420199736U CN203791176U CN 203791176 U CN203791176 U CN 203791176U CN 201420199736 U CN201420199736 U CN 201420199736U CN 203791176 U CN203791176 U CN 203791176U
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- eccentric block
- upper cover
- spring
- cover plate
- spring guide
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Abstract
The utility model discloses a variable-torque starting type energy-saving vibration exciter and belongs to the technical field of vibration exciters ofvibration sieves. Theutility model adopts the technicalscheme as follows: the vibration exciter comprises an upper cover plate, spring guide rods, side plates, an eccentric block, springs, a slide rod, a shaft sleeve and a bottom plate, wherein the shaft sleeve is connected with an output shaft of a traction motor; the spring guide rods are sleeved with the springs and mounted in the guide rod holes of the eccentric block to form a pre-tightening forcestructure, the slide rod is mounted on the eccentric block to form an eccentric block guide structure, and the upper cover plate, the side plates and the bottom plate form a frame structure for controlling the moving range of the eccentricblock. When a vibration machine is started, the torque of the vibration exciter is relatively small, so that the small-current small-torque starting is realized and the running reliability of the traction motor is improved; when the vibration machine stably runs, the torque of the vibration exciter is relatively large, so that enough vibration excitationforce is guaranteed;by controlling the moving position of the eccentric block, the traction motor works near a rated power point, the efficient energy-saving operation is performed, and the economic benefit is remarkable.
Description
Technical field
The utility model relates to the vibrator with change torque startup structure that a kind of vibratory sieve uses, and belongs to exciter for vibration screen technology and vibrating motor field.
Background technology
In coal washing process, vibratory sieve plays the effects such as classification, dehydration, desliming, de-mediated in coal separation operation, is range of application equipment very widely in coal preparation plant.Vibrating machine is made up of vibrator, work body and three parts of flexible member conventionally, the exciting force that wherein vibrator changed in order to the generation cycle, and the work body of making produces lasting vibration.
Apply the most general inertia vibration generator and produce exciting force by eccentric block, due to the existence of eccentric block detent torque, need select relatively high power motor to drag eccentric block running.And after eccentric block steady running gets up, due to the existence of inertia force, do not need relatively high power motor to drag, while so just having caused vibrator stable operation power demand not near motor rated power point, thereby caused the waste of the energy.Because shock electric machine detent torque is large, starting current is large, and motor easily damages, and has a strong impact on the normal operation of coal separation production work.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of change torque and starts energy-conservation vibrator, and this shock electric machine detent torque is little, starting current is little, motor is not fragile, can ensure the normal operation of coal separation production work.
The technical scheme solving the problems of the technologies described above is:
A kind of change torque starts energy-conservation vibrator, its formation comprises upper cover plate, spring guide, side plate, eccentric block, spring, slide bar, axle sleeve, base plate, two side plates are connected to both sides, upper cover plate bottom, base plate is connected between two side plate lower ends, upper cover plate, side plate and base plate surround a framework, axle sleeve is positioned at the frame space of base plate top, axle sleeve is sleeved on motor output shaft, eccentric block is positioned at the frame space of axle sleeve top, slide bar is between upper cover plate and axle sleeve, the two ends of slide bar are connected with axle sleeve with upper cover plate respectively, eccentric block is sleeved on slide bar, eccentric block and slide bar are for being slidably matched, there is respectively spring guide both sides at slide bar, the two ends of spring guide are fixedly connected with base plate with upper cover plate respectively, on eccentric block, there is the guide rod hole corresponding with spring guide, on spring guide, be set with spring, spring guide and spring are through in guide rod hole.
Above-mentioned change torque starts energy-conservation vibrator, and described upper cover plate is bending semicircular arc plate, and the upper end of slide bar is fixedly connected on the central peak position of the semicircular arc plate of upper cover plate, and the upper surface of eccentric block is the semicircular arc matching with upper cover plate lower surface.
Above-mentioned change torque starts energy-conservation vibrator, the upper end of described spring is fixedly connected with spring guide, the lower end circumference of the guide rod hole of eccentric block has the lower end of annulus holder at spring, and annulus is enclosed within spring guide simultaneously, and the interior survey of annulus and spring guide outer wall are for being slidably matched.
The beneficial effects of the utility model are:
On eccentric block of the present utility model, there is guide rod hole, spring guide is arranged in guide rod hole, spring guide forms a structure that pretightning force is provided with the superincumbent spring of cover, at vibrator start of run, the motion of this pre-fastening structure control eccentric block, make vibrator there is less torque in initial start stage, realized little current start, ensured the security of dragging motor; After vibrator gets into smooth, there is larger torque, realized large torque operation, now due to the existence of inertia force, do not need heavy-duty motor to drag, ensured the stability of above-mentioned motor.The utility model is scientific and reasonable for structure, result of use is good, can make dragging motor steady running time, be operated near rated power point, realize energy-efficient operation, the utility model can avoid the motor in vibrating machine to damage, there is significant economic benefit, in vibrating machine, have the value of wide popularization and application.
Brief description of the drawings
Fig. 1 is result schematic diagram of the present utility model;
Fig. 2 is the structural representation of the utility model steady running state.
Number in the figure is as follows: upper cover plate 1, spring guide 2, side plate 3, eccentric block 4, spring 5, slide bar 6, axle sleeve 7, base plate 8.
Detailed description of the invention
The utility model is made up of upper cover plate 1, spring guide 2, side plate 3, eccentric block 4, spring 5, slide bar 6, axle sleeve 7, base plate 8.
In figure, show, upper cover plate 1 is bending semicircular arc plate, and two side plates 3 are vertically connected on upper cover plate 1 both sides, bottom, and base plate 8 is connected between two side plate 3 lower ends, and upper cover plate 1, side plate 3 and base plate 8 surround a framework, and all the other structures are positioned at framework.
In figure, show, axle sleeve 7 is positioned at the frame space of base plate 8 tops, and axle sleeve 7 is sleeved on motor output shaft.Slide bar 6 is between upper cover plate 1 and axle sleeve 7, and the two ends of slide bar 6 are connected with axle sleeve 7 with upper cover plate 1 respectively.
In figure, show, eccentric block 4 is positioned at the frame space of axle sleeve 7 tops, and the upper surface of eccentric block 4 is the semicircular arc matching with upper cover plate 1 lower surface.Eccentric block 4 is sleeved on slide bar 6, and eccentric block 4 and slide bar 6 are for being slidably matched.The upper end of slide bar 6 is fixedly connected on the central peak position of the semicircular arc plate of upper cover plate 1.
In figure, show, there is respectively spring guide 2 both sides at slide bar 6, the two ends of spring guide 2 are fixedly connected with base plate 8 with upper cover plate 1 respectively, on eccentric block 4, there is the guide rod hole corresponding with spring guide 2, on spring guide 2, be set with spring 5, spring guide 2 and spring 5 are through in guide rod hole, and spring 5 can slide up and down along spring guide 2 in guide rod hole.
In figure, show, the upper end of spring 5 is fixedly connected with spring guide 2, and the lower end circumference of the guide rod hole of eccentric block 4 has the lower end of annulus holder at spring 5, and annulus is enclosed within on spring guide 2 simultaneously, and the interior survey of annulus and spring guide 2 outer walls are for being slidably matched.When eccentric block 4 moves upward, the annulus of eccentric block 4 lower ends will be held spring 5 lower ends, upwards Compress Spring 5.
Use procedure of the present utility model is as follows;
Spring guide 2 and the pre-fastening structure that spring 5 forms make eccentric block 4 inactive states be close to base plate 8 under the control of pretightning force.
While being greater than pretightning force along with the centrifugal force of the increase generation of the present utility model of dragging motor rotating speed, eccentric block 4 starts to upper cover plate 1 direction motion by the guide effect of slide bar 6, and final eccentric block 4 rests in upper cover plate 1 lower surface.
After vibrating machine shuts down, along with the reduction gradually of dragging motor rotating speed, when the centrifugal force that the utility model produces is less than the elastic force that spring 5 produces, under the effect of the spring force that eccentric block 4 produces at spring 5, start to base plate 8 direction motions, finally rest in base plate 8 positions, ensured change torque energy conservation starting when next vibrating machine starts.
Said process demonstration, the utility model is controlled eccentric block 4 in less torque conditions in initial start stage by spring 5, has ensured that little electric current and little torque start, and have saved the energy consumption of initial start stage.Along with motor speed increases, the centrifugal force that vibrator produces is greater than the pretightning force of spring 5, eccentric block 4 moves to upper cover plate 1 bottom, in larger torque position, guarantee to produce enough large exciting forces, the movement position by eccentric adjustment piece 4 to upper cover plate 1 direction, can ensure to become torque and start near the rated power point that energy-conservation vibrator is operated in dragging motor, realize energy-efficient operation, thereby also ensured the stable operation of dragging motor.
Claims (3)
1. a change torque starts energy-conservation vibrator, it is characterized in that: its formation comprises upper cover plate (1), spring guide (2), side plate (3), eccentric block (4), spring (5), slide bar (6), axle sleeve (7), base plate (8), two side plates (3) are connected to upper cover plate (1) both sides, bottom, base plate (8) is connected between two side plates (3) lower end, upper cover plate (1), side plate (3) and base plate (8) surround a framework, axle sleeve (7) is positioned at the frame space of base plate (8) top, axle sleeve (7) is sleeved on motor output shaft, eccentric block (4) is positioned at the frame space of axle sleeve (7) top, slide bar (6) is positioned between upper cover plate (1) and axle sleeve (7), the two ends of slide bar (6) are connected with axle sleeve (7) with upper cover plate (1) respectively, eccentric block (4) is sleeved on slide bar (6), eccentric block (4) and slide bar (6) are for being slidably matched, there is respectively spring guide (2) in the both sides of slide bar (6), the two ends of spring guide (2) are fixedly connected with base plate (8) with upper cover plate (1) respectively, on eccentric block (4), there is the guide rod hole corresponding with spring guide (2), on spring guide (2), be set with spring (5), spring guide (2) and spring (5) are through in guide rod hole.
2. change torque according to claim 1 starts energy-conservation vibrator, it is characterized in that: described upper cover plate (1) is bending semicircular arc plate, the upper end of slide bar (6) is fixedly connected on the central peak position of the semicircular arc plate of upper cover plate (1), and the upper surface of eccentric block (4) is the semicircular arc matching with upper cover plate (1) lower surface.
3. change torque according to claim 2 starts energy-conservation vibrator, it is characterized in that: the upper end of described spring (5) is fixedly connected with spring guide (2), the lower end circumference of the guide rod hole of eccentric block (4) has the lower end of annulus holder in spring (5), annulus is enclosed within spring guide (2) simultaneously, and the interior survey of annulus and spring guide (2) outer wall are for being slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199736.1U CN203791176U (en) | 2014-04-23 | 2014-04-23 | Variable-torque starting type energy-saving vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199736.1U CN203791176U (en) | 2014-04-23 | 2014-04-23 | Variable-torque starting type energy-saving vibration exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791176U true CN203791176U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199736.1U Expired - Fee Related CN203791176U (en) | 2014-04-23 | 2014-04-23 | Variable-torque starting type energy-saving vibration exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791176U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268621A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Stepless amplitude-variable vibrator |
| CN105268624A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Vibrator with frequency increased and amplitude changed automatically |
| CN105268622A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Vibrator capable of increasing frequency and reducing amplitude automatically |
| CN110077786A (en) * | 2019-05-13 | 2019-08-02 | 张建东 | A kind of motor oscillating vibration exciter |
-
2014
- 2014-04-23 CN CN201420199736.1U patent/CN203791176U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268621A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Stepless amplitude-variable vibrator |
| CN105268624A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Vibrator with frequency increased and amplitude changed automatically |
| CN105268622A (en) * | 2015-11-11 | 2016-01-27 | 王存伟 | Vibrator capable of increasing frequency and reducing amplitude automatically |
| CN105268621B (en) * | 2015-11-11 | 2018-06-05 | 王存伟 | Stepless luffing vibrator |
| CN110077786A (en) * | 2019-05-13 | 2019-08-02 | 张建东 | A kind of motor oscillating vibration exciter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20190423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |